feat：增加用户资产和会员状态

app/api/enterprise/model/user_assets.go

@@ -0,0 +1,18 @@
+package model
+
+import "SciencesServer/app/common/model"
+
+type UserAssets struct {
+	*model.UserAssets
+}
+
+func (m *UserAssets) Assets(uid uint64) (*UserAssets, error) {
+	if _, err := model.FirstField(m.UserAssets, []string{"id", "currency"}, model.NewWhere("uid", uid)); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+func NewUserAssets() *UserAssets {
+	return &UserAssets{model.NewUserAssets()}
+}